MITAB 1.6.0 has just been released and posted to the website at
http://mitab.maptools.org/

The main feature in this release is improved spatial index generation 
code that produces an optimized R-Tree and gives spatial search 
performance comparable to TAB files generated by MapInfo (up to 30 times 
faster than the spatial index of MITAB 1.5.1 on some searches). Thanks 
to Aircom International (Andrew Blake) for funding this work.

Full details in MITAB bug 1585:
http://bugzilla.maptools.org/show_bug.cgi?id=1585

Note: Unfortunately, the new spatial index generation code is about 5 
times slower when writing files. This is mostly noticeable when writing 
very large files.

The complete list of fixes since 1.5.1 is included below.

Daniel


Version 1.6.0 (2007-02-15)
--------------------------

- Improved generation of the .map's internal spatial index and object
   data blocks to produce an optimal r-tree, resulting in performance
   improvements of up to 30 times faster on some spatial searches,
   matching the perfomance of files generated by MapInfo. (bug 1585)
   (Thanks to Aircom International (Andrew Blake) for funding this.)

- Fixed problem with null brush bg color becoming black when parsing
   style strings (bug 1603)

- Added mitab_is_field_indexed() and mitab_is_field_unique() to C API
   (bug 1621)



 
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